#board{
	width:1200px;
	height:500px;
	background-color:blue;
}
#text{
	color:white;
	font-size: 100px;
}
#show_time{
	color:white;
	font-size: 100px;
	margin-top: 100px;
	margin-left: auto;
	margin-right: auto;
}
#begin{
	margin-top: 150px;
}